<html>

<head>
    <title></title>
    <script src="https://cdn.jsdelivr.net/npm/vue"></script>
</head>

<body>
    <div id='example-3'>
        <input type="checkbox" id="jack" value="Jack" v-model="checkedNames">
        <label for="jack">Jack</label>
        <input type="checkbox" id="john" value="John" v-model="checkedNames">
        <label for="john">John</label>
        <input type="checkbox" id="mike" value="Mike" v-model="checkedNames">
        <label for="mike">Mike</label>
        <br>
        <span>Checked names: {{ checkedNames }}</span>
    </div>
    <div id="example-4">
        <input type="radio" id="one" value="One" v-model="picked">
        <label for="one">One</label>
        <br>
        <input type="radio" id="two" value="Two" v-model="picked">
        <label for="two">Two</label>
        <br>
        <span>Picked: {{ picked }}</span>
    </div>
    <div id="example-5">
        <select v-model="selected">
            <option disabled value="">请选择</option>
            <option>A</option>
            <option>B</option>
            <option>C</option>
        </select>
        <span>Selected: {{ selected }}</span>
    </div>
    <div id="example-6">
        <select v-model="selected" multiple style="width: 50px;">
            <option>A</option>
            <option>B</option>
            <option>C</option>
        </select>
        <br>
        <span>Selected: {{ selected }}</span>
    </div>
    <div id="example-7">
        <select v-model="selected">
            <option v-for="option in options" v-bind:value="option.value">
                {{ option.text }}
            </option>
        </select>
        <span>Selected: {{ selected }}</span>
    </div>
</body>
<script>
    new Vue({
        el: '#example-3',
        data: {
            checkedNames: []
        }
    })
    new Vue({
        el: '#example-4',
        data: {
            picked: ''
        }
    })
    new Vue({
        el: '#example-5',
        data: {
            selected: ''
        }
    })
    new Vue({
        el: '#example-6',
        data: {
            selected: []
        }
    })
    new Vue({
        el: '#example-7',
        data: {
            selected: 'A',
            options: [{
                    text: 'One',
                    value: 'A'
                },
                {
                    text: 'Two',
                    value: 'B'
                },
                {
                    text: 'Three',
                    value: 'C'
                }
            ]
        }
    })
</script>

</html>